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148.4746,-23.8587

148.4746,-23.8587

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TERN/e4351a64-9ded-4396-82a6-423e174c04cd 22991
METADATA

Arcturus Emerald Flux Data Release 2021_v1

Description

This data release consists of flux tower measurements of the exchange of energy and mass between the surface and the atmospheric boundary-layer in semi-arid eucalypt woodland using eddy covariance techniques. It been processed using PyFluxPro (v3.3.0) as described in Isaac et al. (2017), https://doi.org/10.5194/bg-14-2903-2017. PyFluxPro takes data recorded at the flux tower and process this data to a final, gap-filled product with Net Ecosystem Exchange (NEE) partitioned into Gross Primary Productivity (GPP) and Ecosystem Respiration (ER). For more information about the processing levels, see https://github.com/OzFlux/PyFluxPro/wiki.

The Arcturus greenhouse gas (GHG) monitoring station was established in July 2010, 48 km southeast of Emerald, Queensland, with flux tower measurements starting in June 2011 until early 2014. The station was part of a collaborative project between Geoscience Australia (GA) and CSIRO Marine and Atmospheric Research (CMAR). Elevation of the site was approximately 170m asl and mean annual precipitation was 572mm. The tower bordered 2 land use types split N-S: To the west lightly forested tussock grasslands; To the east crop lands, cycling through fallow periods.The instruments were installed on a square lattice tower with an adjustable pulley lever system to raise and lower the instrument arm. The tower was 5.6m tall with the instrument mast extending a further 1.1m above, totalling a height of 6.7m. Fluxes of heat, water vapour, methane and carbon dioxide were measured using the open-path eddy flux technique. Supplementary measurements above the canopy included temperature, humidity, windspeed, wind direction, rainfall, and the 4 components of net radiation. Soil heat flux, soil moisture and soil temperature measurements were also collected.
For additional site information, see http://www.ozflux.org.au/monitoringsites/arcturus/index.html.

Credit
The Arcturus Emerald flux station was managed by Geoscience Australia. It was supported largely by CSIRO Marine and Atmospheric Research and was a voluntary member to TERN.

Purpose
The purpose of the Arcturus Emerald flux station was to :
gain an understanding of natural background carbon dioxide and methane fluxes in the region prior to carbon sequestration and coal seam gas activities take place.
couple natural flux results with high precision greenhouse gas monitoring instruments (including isotope analysis) to be used for atmospheric dispersion modelling.
assess the feasibility of using this type of instrumentation for baseline studies prior to industry activities that will be required to monitor and assess CO2 or CH4 leakage to atmosphere in the future.

Lineage

All flux raw data is subject to the quality control process OzFlux QA/QC to generate data from L1 to L6. Levels 3 to 6 are available for re-use. Datasets contain Quality Controls flags which will indicate when data quality is poor and has been filled from alternative sources. For more details, refer to Isaac et al (2017) in the Publications section, https://doi.org/10.5194/bg-14-2903-2017 .

Temporal coverage

From 2011-06-10 To 2013-12-31

Dates

  • Date modified

    21/10/2021

Citation information

How to cite this collection:

Schroder, I. , Feitz, A. , Kitchen, M. (2021): Arcturus Emerald Flux Data Release 2021_v1. Terrestrial Ecosystem Research Network (TERN). (Dataset). https://doi.org/10.25901/yx7g-5069

Access data

This data can be accessed from the following websites

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Rights and Licensing

Creative Commons Attribution 4.0 International Licence

http://creativecommons.org/licenses/by/4.0

TERN services are provided on an “as-is” and “as available” basis. Users use any TERN services at their discretion and risk. They will be solely responsible for any damage or loss whatsoever that results from such use including use of any data obtained through TERN and any analysis performed using the TERN infrastructure.

Web links to and from external, third party websites should not be construed as implying any relationships with and/or endorsement of the external site or its content by TERN.

Please advise any work or publications that use this data via the online form at https://www.tern.org.au/research-publications/#reporting

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    Researchers

    Research Groups

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    Data Quality

    • If the data quality is poor, the data is filled from alternative sources. Filled data can be identified by the Quality Controls flags in the dataset. Quality control checks include (i) range checks for plausible limits, (ii) spike detection, (iii) dependency on other variables and (iv) manual rejection of date ranges. Specific checks applied to the sonic and IRGA data include rejection of points based on the sonic and IRGA diagnostic values and on either automatic gain control (AGC) or CO2 and H2O signal strength, depending upon the configuration of the IRGA. For more details, refer to Isaac et al (2017) in the Publications section, https://doi.org/10.5194/bg-14-2903-2017.
      For further information about the software (PyFluxPro) used to process and quality control the flux data, see https://github.com/OzFlux/PyFluxPro/wiki .

    Publications

  • Keywords Show

    Parameters

    • relative humidity
    • specific humidity
    • air temperature
    • soil temperature
    • water vapor partial pressure in air
    • water vapor saturation deficit in air
    • wind from direction
    • wind speed
    • mole fraction of water vapor in air
    • monin-obukhov length
    • specific humidity saturation deficit in air
    • eastward wind
    • northward wind
    • vertical wind
    • water evapotranspiration flux
    • gross primary productivity of biomass expressed as carbon
    • net ecosystem exchange
    • net ecosystem productivity
    • surface friction velocity
    • volume fraction of condensed water in soil
    • thickness of rainfall amount
    • surface downwelling shortwave flux in air
    • surface upwelling shortwave flux in air
    • surface downwelling longwave flux in air
    • surface upwelling longwave flux in air
    • downward heat flux at ground level in soil
    • surface upward latent heat flux
    • upward mole flux of carbon dioxide due inferred from storage
    • mass concentration of carbon dioxide in air
    • surface upward mole flux of carbon dioxide
    • ecosystem respiration
    • surface upward flux of available energy
    • magnitude of surface downward stress
    • mass concentration of water vapor in air
    • surface upward sensible heat flux
    • surface net downward radiative flux
    • surface air pressure
    • mole fraction of carbon dioxide in air

    Platforms

    • Arcturus Emerald Flux Station

    Instruments

    • Campbell Scientific TCAV Averaging Soil Thermocouple Probe
    • Gill Windsonic4
    • Campbell Scientific CSAT3
    • Campbell Scientific CS616
    • HyQuest Solutions TB4
    • Kipp&Zonen CNR4
    • Observator RIMCO HP3/CN3
    • Vaisala HMP45C
    • LI-COR LI-7500A

    Temporal Resolution

    • 1 minute - < 1 hour

    GCMD Science

    • BIOGEOCHEMICAL PROCESSES
    • LAND PRODUCTIVITY
    • EVAPOTRANSPIRATION
    • TERRESTRIAL ECOSYSTEMS
    • ATMOSPHERIC PRESSURE MEASUREMENTS
    • TURBULENCE
    • WIND SPEED
    • WIND DIRECTION
    • TRACE GASES/TRACE SPECIES
    • CARBON DIOXIDE
    • PHOTOSYNTHETICALLY ACTIVE RADIATION
    • LONGWAVE RADIATION
    • SHORTWAVE RADIATION
    • INCOMING SOLAR RADIATION
    • HEAT FLUX
    • AIR TEMPERATURE
    • PRECIPITATION AMOUNT
    • HUMIDITY
    • SOIL MOISTURE/WATER CONTENT
    • SOIL TEMPERATURE

    ANZSRC - FOR

    • ATMOSPHERIC SCIENCES
    • ECOLOGICAL APPLICATIONS
    • Ecosystem Function
    • ENVIRONMENTAL SCIENCE AND MANAGEMENT
    • Environmental Monitoring
    • SOIL SCIENCES

    User Defined

    • climatologyMeteorologyAtmosphere
    • AU-Emr
    • Grasslands
    More...
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